Belkin F1DD102L - Manual (Page 26)

24
Firmware-Upgrade Guide
Connect your KVM Switch to the Mac Host
Step 5.
Press the first front-panel button on the KVM Switch until you hear three beeps.
Now the KVM Switch has entered into the upgrade mode.
Step 6.
Check to make sure the KVM cables from port 1 are connected to the
Mac host.
Note: A special upgrade cable is not needed to perform the upgrade since you can
use the same KVM cable that you use for connecting to the computers. However,
depending on the different models, the KVM cables you use will vary.